Tractor-wheel.



R. E. TOMBAUGH.

TRACTOR WHEEL.

APPLICATION FILED JUNE 4, 1915.

1,171,988. Patented Feb. 15,1916.

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THE COLUMBIA PLANOGRAPH 1:12., WASHINGTON, B. c

* UNITED STATES PATENT ROY E. TOMIBAUGH, or ROANN, INDIANA.

TRACTOR-WHEEL.

Specification of Letters Patent.

Application filed June 1915. SerialNo. 32,110."

To all whom it may concern:

"Be it known that I, ROY E. ToMBAUoH, a citizen of the United States, and a resident of Roann, county of VV'abash, and State of Indiana, have invented a certain new, and

useful Tractor-\Vheehand I do hereby declare that the following is a full, clear, and exact description thereof, reference belng had to the accompanying drawings, in

' they may be withdrawn within the felly of the wheel by simply adjusting them at the hub.

, Thefull nature of the invention may bev understood 'from the accompanying drawings and the following description and claims.

In the drawings Figure 1 1s a vertical section of the tractorv wheel showing the. cleats withdrawn within the felly. 'Flg. 2' is a crosssection on the line 22 of Fig.

1. Fig. 3 is the same as Fig. 1 showing the cleats in extended position. Fig. at is a cross section on the line of Fig. 3.

In the drawings there is shown a tractor wheel having a felly l0, spokes 11, and hub 12. The felly has slots within it in alinement with the axle through which the adjustable cleats 13 extend. Saidcleats 13 have a frame 14: which is secured to an auxiliary expanding hub member 15. Said hub member 15 is comprised of a plurality of wedge shaped members, one attached toeach frame 14 and adapted'to fit together so as to form an auxiliary hub around the hub .12. Between the hub 12 and the auxiliary hub members 15 there are two'wedge members 17 which are adapted to slide toward each other on the hub 12 so as to force said auxiliary hub members outward. Extending transversely through said wedge members there are two worm screws 18 on opposite sides of the hub secured to the oppositely threaded worm screws 19. Secured to said screws there is a removable crank 20 and a lock nut 21 for holding said screws in posit on when adjusted Surrounding the periphery of the auxiliary hub members 15,

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l Patented Feb.15,1916.

there isan expandible band 23 for holding said members in place.

roads or where cleats are not permitted, the tubular wedges may be forced apart by the oppositely threaded worms so that the cleat is lowered in alinement with the surface of the fe'lly and the expandible band is then drawn together and tightened by the set screw, but when it becomes necessary to use Said band is adusted by a bolt 24. "When traveling on hard cleats, the band may be loosened and by means of the worm screws, the wedge may be drawn together forcing thecleatv outward through the slot in the felly, and locked into position by the lock nut 21. Extending" from the endsjof each member of the mix lliaryhub, there is a projection25 which extends in a slot 26 in the main hub for guiding the members in their movement,

and preventing any lateral displacement. The invention claimed is:

1. A tractor wheel having a felly with slots therein, movable cleats extending outwardly through said slots, plurality of auxiliary, hub members attached to said cleats, oppositely tapered tubular wedge 7 members for holding said cleats in their outward position and oppositely threaded shafts for'operating said wedge members.

2. A tractor wheel having slots in the folly thereof, cleats adapted to extend through said felly, expandible hubmembers con nected to said. cleats, meansfor expanding said hub members, and an expandible band surrounding said hub members for holding 7 them in place.

3. A tractor wheel, cleats adaptedto extend past the periphery of said wheel, ex pansible hub members connected to said cleats, means for expanding saidhub mein; bers, and an expansible'band surrounding said hub members for holding them in place.

In witness whereof, I havehereto afiixed my signature in the presence of the witnesses herein named.

Witnesses: V

C. F. GOL RY, V J. M. LOWMAN.

Copies of this patent may be obtained for five cents each, by addressing the Commissionerof Patents,

7 I Washington, D. G.

ROY E. TOMBAUGH. 

